rtcd.sh: sort functions by name

this will aid in output comparison with other generation systems

Change-Id: Ifb66321e45ab9fdd9eaeb5e0ea8b3d0632efe7ce

build/make/rtcd.sh

@@ -333,6 +333,7 @@ EOF
 #
 # Main Driver
 #
+ALL_FUNCS=$(export LC_ALL=C; echo $ALL_FUNCS | tr ' ' '\n' | sort |tr '\n' ' ')
 require c
 case $arch in
   x86)